No fatalities

Engine Failure and Wrong-Engine Shutdown Lead to Crash at Heathrow (G-ALTM)

London-Heathrow, United KingdomLanding (descent or approach)

On December 9, 1955, a De Havilland DH.104 Dove (registration G-ALTM) operated by British Overseas Airways Corporation - BOAC was involved in an aviation accident near London-Heathrow, United Kingdom during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Failure of the right engine on final approach and wrong engine shut down by the pilot. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 3 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Source recordUpdated 2026-07-04Data APIEditorial standards

On final approach, the right engine failed. The pilot mistakenly shut down the left engine, causing a stall and crash short of the runway. All three occupants evacuated; aircraft destroyed.

Incident Overview

The aircraft, operated by a crew of one pilot and two filmmakers, was returning to Heathrow Airport after an uneventful mission to film the airport. During the final approach phase, the right engine experienced technical problems and failed. In the ensuing confusion, the pilot inadvertently shut down the left engine, which was still functioning properly. This action caused a loss of thrust, leading to an aerodynamic stall. The aircraft subsequently impacted the ground short of the runway.

Occupants and Damage

All three occupants—the pilot and two filmmakers—successfully evacuated the aircraft following the crash. The aircraft sustained substantial damage and was written off.

Probable Cause

The official investigation determined the probable cause to be the failure of the right engine on final approach and the pilot's erroneous shutdown of the left engine.

Frequently asked questions

What happened in the 9 Dec 1955 De Havilland DH.104 Dove accident near London-Heathrow, United Kingdom?

On final approach, the right engine failed. The pilot mistakenly shut down the left engine, causing a stall and crash short of the runway. All three occupants evacuated; aircraft destroyed.

Were there any fatalities in the 9 Dec 1955 De Havilland DH.104 Dove accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 9 Dec 1955 involved a De Havilland DH.104 Dove, registration G-ALTM, operated by British Overseas Airways Corporation - BOAC, at London-Heathrow, United Kingdom.

What was the probable cause of the accident?

Failure of the right engine on final approach and wrong engine shut down by the pilot.